Scale.



0. F. CHRISTOPHER.

SCALE.

APPLICATION FILED MAY 18, 1912.

1,067 21 3, Patented July 8, 1913.

J5 A 2 SHEETSSHEET 1.

37 55 I t i a 51 i j 'fi i 10 I6 i a (9 a 4 :15 1a 21 14: l J g jg j? 7Inventor Witnesses I 7 I j! I Attorneys azmiaz/vszamm G. F. CHRISTOPHER.

SCALE.

APPLICATION FILED MAY 18, 1912.

Patented July 8, 1913.

2 SHEETS-SHEET 2.

Attorneys COLUMBIA FLANUORAPH cO-. WASHINGTON D c UN 1TB CALVIN F.CHRISTOPHER, OF ASHEVILLE, NORTH CAROLINA.

SCALE.

Application filed May 18, 1912.

To all 107mm it may concern Be it known that I, CALVIN F. CHRISTO- rnnn,a citizen of the United States, residing at Asheville, in the county ofBuncombe and State of North Carolina, have invented a new and usefulScale, of which the following is a specification.

This invention relates to scales of that type designed for use oncounters and the like, one of the objects of the invention being toprovide means combined with the scale whereby not only will the weightbe accurately indicated but the price to be charged will also bedisclosed.

Another object is to provide scales having improved mechanism foroperating the weight and price indicating mechanism.

A further object is to provide scales which are simple and compact inconstruction, are made up of but few parts, and which will not readilyget out of order.

I'Vith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings :--Figure l is a view partly in section and partly infront elevation of the scales. Fig. 2 is a section on line AB Fig. 1.Fig. 3 is an enlarged section through the weight indicating mechanism.Fig. 4 is a perspective view of the mechanism contained within the bodyof the scales. Fig. 5 is an elevation of that side of the weightindicating portion designed to be viewed by the customer.

Referring to the figures by characters of reference 1 designates ahollow base having a main casing or housing upstanding therefrom andpreferably integral therewith, this housing being indicated at 2.

Secured within the housing 2 is an inverted yoke-like frame 3 within theupper portion of which a stem I is slidably mounted, this stem beingscrew threaded and engaged by an adjusting nut 5. The stem is adapted toextend upwardly through the housing 2 and the nut is mounted on theupper surface of the housing so as to be Specification of LettersPatent.

Patented July 8,1913.

Serial No. 698,223.

accessible readily for the purpose of varying the tension of a spring 6which extends downwardly from and is supported by the stem 4. The lowerend of the spring 6 is attached to an ear 7 outstanding from the lowerend of a frame 8 which is mounted to work up and down within the housing2 and has an arm 9 extending upwardly therefrom and through an opening10 in the top of the housing 2. The upper end of the arm is preferablyoffset, as shown at 11, and supports a tray 12 on which the material tobe weighed is placed.

Another or fixed frame 13 is secured within the housing 2 and hasparallel links 14: pivotally connected to the sides thereof and also tothe sides of the movable frame 8. Ears 15 extend downwardly from thefixed frame 13 and additional ears 16 extend downwardly fro-m themovable frame 8, the ears 15 and 16 being pivotally connected to a beam17 which extends longitudinally within the base 1 and is parallel withthe links 141. Thus it will be seen that the links, the two frames 8 and13, and the beam 17 form a parallelogram, whereby the arm 9 ismaintained constantly perpendicular to the base 1.

A casing 18 is mounted on the base 1 at one side of the housing 2 andhas a shaft 19 mounted for rotation therein. This shaft is designed toactuate a price indicating device such as shown, for example, in PatentNo. 1,006,062, issued to me on October 17, 1911. Inasmuch as this priceindicating mechanism constitutes no part of the present invention,except as included broadly in the combination, it is not deemednecessary to describe in detail the construction thereof and thearrangement of the data thereon. The shaft 19 has a gear 20 secured toit and this gear is constantly engaged by a rack 21 which extendsdownwardly within the base 1 and is pivotally connected to the beam 17as shown at 22. A leaf spring 23 or the like is arranged within the baseand bears against the rack 21 so as to hold said rack yieldingly inengagement with the gear.

It will be noted that the rack 21 is parallel with the fixed frame 13 soas to have a straight up and down movement during the actuation of thebeam 17.

Upstanding from the base 1 is a standard 241 on which is supported acylindrical casing 25. A shaft 26 is j ournaled within the center of thecasing and projects beyond one face of said casing, said projecting endportion carrying a .gear 27 which is constantly in mesh with a rack 28.A flange 29 extends outwardly from the casing 25 and surrounds gear 27,this flange being concentric with the shaft 26 and supporting a hingedclosure 30 which preferably includes a transparent portion 31. Thus itwill be seen that gear 27 and rack 28 are clearly visible through theclosure. The rack extends through an opening in the flange 29 anddownwardly into the base 1, the lower end portion of the rack beingpivotally connected to the beam 17, as shown atSl. A casing 32 isconnected to the beam 17 close to the rack 28 and contains a coiledspring 33 one end portion of which bears against'the end portion of therack 28, thus serving to press the upper end portion of the rackyieldingly into engagement with the gear 27. A retaining bracket 34 maybe mounted on the casing 25 back of the closure 30 and, if desired, canbe utilized as a bearing for the shaft 26.

A disk 35 is secured to and rotates with the shaft 26 and has a circularseries of graduations thereon, as indicated at 36 in Fig. 1, thesegraduations being designed to appear successively within an arcuateopening 37 formed in that face of the casing 25 from which the flange 29projects. A stationary intake 38 is secured to the casing and extendsacross the opening 37.

Concentric flanges 39 extend from that face of disk 35 opposite to thaton which the .graduations 36 are formed and the flanges 39 carry a ring40 having a circular series of graduations 41 thereon adapted to appearsuccessively within an arcuate opening 42 formed in that side of thecasing25 to be viewed by the customers. An opening 43 is formed in thesame side of the casing 25 as is the opening 42 and detachably mountedwithin this opening 43 is a clock 44 the face of which can be readilyseen by the customers. This clock may be detachably held in any mannerdesired as, for example, by means of a hinged retaining ring 45. Astationary index 46 is connected to the casing 35 and extends into theopening 42.

When the tray 12 is moved downward under the weight of materialdeposited thereon, the spring 6 will be elongated and frame 8 will beardownwardly on one end portion of the beam 17. The long arm of the beamwill thus be raised and the two racks 21 and 28 will also be movedupwardly. Rack 21 Wlll cause gear 20 and the mechanism operated therebyto rotate while rack 28 will rotate the gear 27 and disk 35. Thus theweight of the material on the tray will be indicated by the graduationsappearing in the openings 37 and 42 while the price to becharged will bedesignated by characters appearing within an opening in the casing 18.By forming the graduations 41 on a ring 40, a large circular recess isthus formed into which the clock 44 can project and the rotation of disk35 will not be interfered with.

hat is claimed is 1. In scales, the combination with members forming aparallelogram including a scale beam, means carried by one member of theparallelogram for holding material to be weighed, and an adjustableyielding element for maintaining the scale beam normally in apredetermined position, of a Gas ing having apertures in opposed faces,a disk mounted for rotation within the casing and having graduationsthereon adapted to appear successively within one of the openings,flanges outstanding from the disk, a graduated ring carried by theflanges, said graduations being designed to appear successively withinthe other opening in the casing, and means operated by the scale beamfor rotating the disk.

2. In scales, the combination with members forming a parallelogramincluding a scale beam, means carried by one member of the parallelogramfor holding material to be weighed, and an adjustable yielding elementfor maintaining the scale beam normally in a predetermined position, ofa casing having apertures in opposed faces, a disk mounted for rotationwithin the casing and having grad-nations thereon adapted to appearsuccessively within one of the openings, flanges outstanding from thedisk, at graduated ring carried by the flanges, said graduations beingdesigned to appear successively within the other opening in the casing,a gear revoluble with the disk, a rack meshing therewith and connectedto the beam, and yielding means carried by the beam for hold ing therack in engagement with the gear.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

CALVIN F. CHRISTOPHER,

Witnesses Crnmnns S. Town, J. D. PENLAND.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

